Control-valve for rotary engines.



. E. TAYLOR. 00111 1101. ALVE ron ROTARY ENGINES. APPLIOATIQN FILED MAR.20, 1906.

Patented Sept. 29, .1908.

4 8HEET8-SHEET l.

.29 W 1,; u y/a V 5mm? E. TAYLOR. CONTROL VALVE FOB. ROTARY ENGINES.

APPLICATION FILED MAR. 20, 1906.

s cc, Asnmarmv, n. c.

Patented Sept. 29, 1908.

4 SHEETS-SHEET 2.

E. TAYLOR. CONTROL VALVE FOREOTARY ENGINES.

APPLICATION FILED MAR.20, 1906.

899,814, Patented Sept.29, 1908.

4 SHEETS-SHEET 3..-

E. TAYLOR. CONTROL VALVE FOR ROTARY ENGINES;

APPL'IQATION FILED 14411.20} 199a.

, 4SHEETS-SHBET4 Patented S6 yli.

m, \i J 2 J v MM Xvi} UNITED STATES YPATENT OFFICE.

EDWIN TAYLOR, OF NEW YORK,- N. Y., ASSIGNOR TO TAYLOR HERRIOK ROTARYENGINE COMPANY, A CORPORATION OF NEW YORK.

CONTROL-VALVE FOR ROTARY ENGINES.

Specification of Letters Patent.

Patented Sept. 29, 1908.

Application filed March 20, 1906. Serial No. 307,104.

To all whom it may concern.

Be it known that I, EDWIN TAYLOR, a citizen of the United States,residing in the borough of Brooklyn, in the city of New York, State ofNew York, have invented certain new and useful Improvements inControl-Valves for Rotary Engines, of which the following .is aspecification. My invention relates to valve devices, especiallyintended for rotary engines, and consists in a valve device having atubular valve and rotatable cut-off plug, and constructed and arrangedso that the position of the plug cannot at any time prevent the motorfluid from being transmitted to the engine to start the same, and incertain details of construction as fully set forth hereinafter andillustrated in the accompanying drawings, in which,

Figure 1 is a sectional elevation of an engine provided withmy improvedvalve device; Fig. 2 is a sectional plan; Fig. 3, a transverse sectionon the line 33, Fig. 1, looking in .the direction of the arrow;.Fig. 4,a similar view showing the exterior of the tubular valve; Fig. 5 is asimilar section through the case showing the valve removed; Fig. 6, asection through the valve removed from the case; Fig. 7, a section onthe line 7-7, Fig. 6; Fig.- 8, a section on the line 88, Fig. 6; Fig. 9,a section on the line 99, Fig. 4 with the valve in position for runningforward; Fig. 10, a section on the line 10 10, Fig. 5 with the valve inpositionfor reversing; Figs. 11' and 12, sections on the line 1111, Fig.4, but with the valve in different positions; Fig. 13 is a viewillustrating the governor.

For the purpose of illustrating my valve, I have shown it in connectionwith an engine of the rotary type, in the casing A of which are theinlet port 7 and the exhaust port 8,

which ports communicate with ports 20,40, in the casing B of the tubulartapering valve E. With the latter casing communicates a supply steampipe C, the exhaust passing from the casing B through a port 29 at oneend, which port is practically a part of a chamber in which is situatedthe tubular valve E having a tubular stem 30 extending through asuitable packing box at the oppo site end of the casing and providedwith a handle 39. Within the valve E is a plug F cut away to form achannel or passage 3 and having a stem 33 extending through the hollowstem of the valve and carrying a sprocket 31 connected with a sprocket32 on a shaft 34 of the engine by means of a chain 35, so that the plugF which constitutes the cut-ofi will rotate once to each rotation of theengine shaft. The plug is secured within the valve by means of a screwblock 38. This cut 0E plug F extends within the valve E beyond thelimits of the port 4, which may communicate with the inlet 7 of thecasing A through the port 20 of the casing B, so that the valve Eextends as a hollow sleeve or tube beyond the end of the plug and isthere provided with a port 5 cut through the same and adapted to bebrought in communication with the port 40 and the exhaust port 8 of theengine.

In the valve E the port 4 corresponds in area substantially with theport 20, and another port 2 in the valve at about right angles to theport 4 and of about the same area at the inside of the valve is extendedin both directions at the outer face of the valve so as to coverapproximately onefourth the periphery thereof.

The casing B has a supply port 1 communicating with the pipe C and whenthe engine is not running reversed, the valve E is in the position shownin Fig. 1, when the steam will flow through the ports 1 and 2, channel 3and ports 4 and 20, to the port 7 of the engine, and will pass to theexhaust port 8, and through the port 40 of thecasing B and port 5 of thevalve into the interior of the tubular end of the latter and out to theexhaust port 29.

It will be evident that as the cut off plug F rotates once to eachrotation of the engine, it may be so set that in running the engineforward, the plug may be caused to close the port 4 at any desiredperiod of the stroke, the closure generally continuing about onehalf ofthe rotation, which would cut off about one-fourth of the stroke. Ofcourse this could be varied by a change in the proportions of the parts.While this cut-off of the parts of the valve being brought to suchposition that the engine cannot be started in any position of the cutoif. This results from the fact that the inner mouth of the port 2,which is controlled by the cut off plug, is less in width peripherallythan the outer mouth of the said port, which is of such extent that thevalve E may be turned to put the port 1 in communication with the port 7so that steam is admitted directly to the engine whether or not the cutoff plug F is in position to close the port 2 at its inner mouth. Thisinsures the ability to start the engine at any time regardless of thecut off, but after the engine is once started, and the cut off beginsits rotation by the action of the engine, the valve E is brought to theposition shown in Fig. 1, when communication between the port 1 and theport 7 will only be effected through the channel in the cut off, and thelatter will operate to effectively perform its functions.

While it may not always be necessary to secure a reverse action, it isin many instances desirable, and sometimes absolutely essential. Itherefore provide means to procure this effect. To this end the casing Bhas two ports each of which may be a discharge port, and there is alongitudinal port or channel 9 in the casing at the side opposite theport 20 (see Figs. 2 and 9) and. at the inside end of the casing thechannel 9 connects with a curved port 10 within the casing, extendingtransversely and communicating at its inner end with the port 40 (Figs.2 and 10).

In the face of the valve E is a longitudinal channel 12 (Figs. 3, 5, (3and 8) at the side opposite the port 2, and at the exhaust end of thevalve the channel 12 communicates through an inclined portion 15 (Fig 3)with the interior of the valve beyond the end of the plug 38.

To reverse the engine the valve E is turned by swinging the handle 39towards the left (Figs. 11 and 12) and as the widened outer part of theport 2 'is carried to the position shown in Fig. 11, the infiowing steamis cut off from the port 3, but is directed through a bypass, consistingof the said port 2 which carries the steam, outside of the cutoff plug,to the channel 9, and through the channel 10 (Figs. 2 and 10), to theport 10 and to the discharge port E of the engine, reversing the latter.The movement of the valve is con tinued until it is in the positionshown in Fig. 12, and the steam then flows from the engine through theport 7 to the discharge port'20 of the casing, and to the channel 12 ofthe valve and along the latter to the inside of the valve at the exhaustend and is discharged through the exhaust 29. On the reversal of theengine the plug F reverses its direction of rotation so that the steamwill pass to the port 2 through the channel 3. The valve E with its port2 is thus under the control of the operator to connect the supply port 1with either port or passage 40 or 20, so that the engine may be suppliedto be run by direct pressure in either direction for starting or whenheavily loaded, and independently of the position of the cut-off, butthe latter may be adjusted to cut-oil at any desired part of the stroke,running in either direction.

To properly regulate the engine any suitable means may be used forgoverning or controlling the relation of the cut-elf and, the valve,according to the speed. As shown, I make use of a governor Gr (Fig. 13)and connections whereby the sprocket 32 is advanced or retarded in itsposition on the shaft 34 while being compelled to rotate therewith. Thusthe shaft carries radial rods 50 on which slide the weights 51 of thegovernor, and to each weight is pivoted a link 53, the other end ofwhich is pivoted to the side of the sprocket.

Springs 52 tend todraw the weights toward the shaft, and the sprocket isthen held. so that the cut-off will act to cut oil to the minimumextent. As the speed increases the weights move outward, and thesprocket is turned to so shift the cut-off plug F that the steam will becut 011 earlier in the stroke in proportion as the weights move outward.

It will be evident that any other suitable form of governor may beemployed.

It will be seen that the valve is extreimxly simple .in construction andthat the parts can be readily machined, the valve exteriorly beingsimply a tapering cylinder readily titted to a tapering seat in thecasing B, while the ports can either be formed by ca sting or readilymade by milling, there being no tortuous passages or channels and theparts being readily assembled.

lVithout limiting myself to the precise construction and arrangementshown, I claim as my invention 1. The combination in a valve device, of:1V casing having a seat for a tubular valve, an

inlet port and ports arranged to connnunicate with the inlet and exhaustports of an engine, and a valve rotatable within said.

casing and provided with a cut-oli plug, the valve having a port with acontracted inner mouth controlled by the cut-oil plug, and a wider outermouth adapted to coincide simultaneously with the inlet port of the 1casing and with the port through which the steam passes to the engine.

2. The combination in a valve device, of a casing having supply anddischarge ports, a tubular valve having a port 2 adapted to connect thesupply and discharge ports of the casing and extending through thevalve, and a cut-off plug adapted to cut off the flow between said port2 and the engine.

8. The combination with a valve casing having its separated supply anddischarge ports, of a tubular valve having a port 2 widened at theperiphery of the valve so as to connect the. supply and discharge ports,and contracted towards the inner face of the valve, and a cut-off plugconstructed to close communication between the said port 2 and theinterior of the valve.

4. The combination with a valve casing having its separated supply anddischarge ports, of a tubular valve having a port 2 widened at theperiphery of the valve so as to connect the supply and discharge portsand contracted towards the inner face of the valve, a cut-off plugconstructed to close communication between the said port 2 and theinterior of the valve, and means whereby to impart rotation to thecut-off plug.

5. The combination with the engine" having supply and discharge ports,of a valve casing having a supply port, and -a discharge portcommunicating with the supply port of the engine, and provided with atubular valve having ports and channels,

and an interior channeled cut-ofl plug extending through the tubularvalve, means for rotating the said plug in unison with the movements ofthe piston of the engine, and means for setting the tubular valve todifferent positions.

. G. In a valve device, the combination of a casing provided with a seatfor a rotatable valve, a supply port and two discharge ports arranged tocommunicate with inlet and exhaust ports of an engine, and a valvefitted to said seat and provided with an internal cut-off, and with aport adapted to form a communication between the supply port and eitherdischarge port, either through or around the cut-off.

7. In a valve device, the combination of a casing provided with a seatfor a rotatable valve, a supply port and two discharge ports arranged tocommunicate with inlet and exhaust ports of an engine, and a valvefitted to said seat and provided with an in ternal rotatable cut-off,and with a port adapted to form a communication between the supply portand either discharge port either through or around the cut-ofi.

8. In a valve device, the combination of a casing-provided with a seatfor a rotatable valve, a supply port and two discharge ports arranged tocommunicate with inlet and exhaust ports of an engine, and a valvefitted to said seat and provided with an in-,

ternal rotatable cut-ofl' having a channel, and with a port adapted toform a com munication between the supply port and either discharge port,either through or around the cut-oil.

9. In a valve device, the combination of a casing provided with a seatfor a rotatable valve, a supply port and two discharge ports arranged tocommunicate with inlet and exhaust ports of an engine, avalve fitted tosaid seat and provided with an internal cut-oft and with a port adaptedto form a communication between the supply port and either dischargeport either through or around the cut-off, and means for rotating thecut-off from the engine.

10. The combination with. the valve casing, its ports 1, 20, 40 andchannels 9, 10, of a rotatable valve having a port 2 adapted to connectthe port 1 with either port 20 or channel 9,'a second port 4:, and acut-off rotatable within the valve and provided with the passage 3,whereby to put the ports 4 and 2 in communication.

11. The combination with the valve cas ing, its ports 1, 20, 40 andchannels 9, 10, of a rotatable valve having a port 2 adapted to connectthe port 1 with either port 20 or channel 9, a second port 4, a cutoffrotatable within the valve and provided with the passage 3, whereby toput the ports 4 and 2 in communication, and means for rotating thecut-off from the engine.

12. The combination with a valve casing having a supply port and twodischarge ports, of a rotatable valve, and a rotatable channeled cut-offwithin the valve, the valve having a port adapted to connect the supplyport with either of the discharge ports, either through or as a bypassoutside of the cut-off.

13. The combination with a valve casing, its supply port, differentdischarge ports and valve, of a rotatable cut-off within the valve, andports and passages in the valve whereby to direct the motor fluid fromthe supply port to eitherdischarge port, either through or around thecut-01f.

14. The combination with a valve casing,

its supply port, different discharge ports.

and valve, of a rotatable cut-ofi' within the valve, ports and passagesin the valve whereby to direct the motor fluid from the supply port toeither discharge port either through or around the cut-off, and meansfor shifting the valve and for rotating the cut-off.

15. The combination in a valve device, of a casing, rotatable valve, androtatable cutoff within the valve, the casing having a supply port andtwo discharge ports and the valve and casing having ports and passageswhereby the supply port may be put in communication with eitherdischarge port independently of the position of the cutoff.

16. The combination in a valve device, of a casing having a supply portand two discharge ports, a rotatable valve, and a rotatable channeledcut-off within the valve, said valve having a port arranged to be closedat its inner month by the cut-off and to connect by its outer mouth thesupply port with either discharge port.

17. The combination with a valve device having an adjustable tubularvalve and internal rotating cut-off plug, of means for 10 rotating thecut-off plug from an engine and a speed governor and means forrotatively advancing or retracting the position ofthe cut-off plug.

In testimony whereof I aflix my signature in presence of two witnesses.

EDlVIN TA YLOR.

fitnesses CHARLES E. Fosrnn,

